FRANCE DOUBLE COLOR FILM BLOWING MACHINE

zhuxin manufacturers packaging machines including vertical form fill seal, stick pack, sachet, and premade pouch fillers.Buy Multi-Layer Co-Extrusion Polyolefin Film Blowing Machine, Find Details include Size,Weight,Model and Width about Multi-Layer Co-Extrusion Polyolefin?Plastic melt is extruded through an annular slit die, vertically to form thin walled tube ? Air is introduced in the centre of the die to blow up the tube like a balloon (IBC) ? Air ring blows onto the hot film to cool it (outside and inside the tube) ?